Bobbin-spindle.



G. JENKINS.- BOBBIN SPINDLE. APPLICATION FILED SEPT. so, 1008.

936,904. I Patented Oct. 12, 1909.

CHARLES JENKINS, OF DANVILLE, PENNSYLVANIA.

BOBBIN-SPINDL'E.

Specification of Letters Patent.

Patented Oct. 12, 1909.

Application filed September 30, 1908. Serial No. 455,415.

To all whom it may concern! Be it known that 1, CHARLES JENKINS, acitizen of the United States, residing at Danville, in the county ofMontour and State of Pennsylvania, have invented new and usefulImprovements in Bobbin-Spindles, of which the following is aspecification.

This invention relates to bobbin spindles for winders and doublers andrelates more particularly to means for holding the bobbin firmly inplace while at the same time permitting of the ready removal of thebobbin from the spindle.

The invention has for one of its objects to improve and simplify theconstruction and operation of devices of this character so as to becomparatively simple and inexpensive to manufacture, reliable andefficient in use, and conveniently manipulated.

Another object of the invention is the provision of a spindle having akey connected with a spring to engage the outer end of the bobbin tohold the latter against the head of the spindle, the key being guided onthe top of the spindle and capable of being turned to extend over thetop of the spindle for allowing the bobbins'to be slipped on and off thelatter.

WVith these objects in View and others, as will appear as thedescription proceeds, the invention comprises the various novel featuresof construction and arrangement of parts which 7 will be more fullydescribed hereinafter and set forth with particularity in the claimsappended hereto.

In the accompanying drawing, which illustrates one embodiment of theinvention, Figure 1 is a side elevation of a bobbin spindle showing itin operative position in the supporting frame or holder. Fig. 2 is aside elevation of the spindle showing a bobbin thereon in section andhaving the key in released position. Fig. 3 is a similar view showingthe key in locked or set position. Fig. 4 is a side view of'thespindleopposite from that shown in Fig. 2 with the bobbin partially removed.Figs. 5, 6 and 7 are end views, respectively, of Figs. 2, 3 and 4:.

Similar reference characters are employed to designate correspondingparts throughout the views. 7

Referring to the drawing, A designates the apparatus in which thespindle is mounted for turning the bobbin during the winding of thethread thereon, and this apparatus may be of any approved constructionas the same does not constitute any part of the present invention. Thespindle B consists of a tapering shank or stem 1 formed contiguous witha cylindrical head or wheel 2 which engages with a pulley 3 of theapparatus A for rotating the spindle, the spindle being mounted inbearings A. On the shank 1 of the spindle is a bobbin 5 of any approveddesign, size or construction and the same is held in place against thehead 2 by a key 6. This key is attached to a piece of round wire 7 at apoint intermediate the ends thereof to constitute a stem and this stemis movable longitudinally in a superficial guideway 8 extendinglongitudinally of the shank 1 at the tip thereof. When the shank is madeof wood, the tip is provided with a metal sleeve or ferrule 9 which isslit longitudinally to provide a slot 10 through which the key 7projects, and the slot is nar rower than the diameter of the stem 7, sothat the latter will move back and forth without danger of lateraldisplacement through the slot 10. The shank 1 is provided with asuperficial groove 11 that extends longitudinally thereof and alineswith the slot 10 and in this groove 11 is a helical extension spring 12of fine wire which has its inner end anchored at 13 and its outer endfastened to the inner end of the stem 7. The key 6 is in the form of alaterally-extending ear attached to the stem 7 and is of such size thatwhen disposed over the end of the spindle, it will lie within theperiphery of the latter so that the bobbin 5 can slip freely on or offthe spindle shank. When it is desired to remove the bobbin from thespindle, the latter is taken out of the apparatus A and the head 2grasped in one hand and the bobbin 5 in the other and the bobbin pulledoutwardly until the key is beyond the tip or outer extremity of theshank 1 of the spindle, as shown in Fig. A. While held in this position,the bobbin is given a partial turn to throw the key over the end of thetip of the bobbin to the position shown in Fig. 7 from that shown inFig. 6, it being understood that the key will be held frictionallyengaged with the bobbin during this i turning movement so that the keywill also turn, and as soon as the key is disposed across the end of thespindle, the bobbin can be slipped freely off the same. It will thus beseen that it is unnecessary to take hold of the key directly to releasethe same. Another bobbin is then slipped over the spindle 'ing a bobbinin place 011 the spindle, and a and the key disengaged from the end ofthe spindle by taking hold of the projecting end l of the stem 7, Fig.2, and turning the key from the position shown in Fig. 5 to that shownin Fig. 6, when the stem is released so that the spring 12 will draw thekey inwardly against the outer end face of the bobbin. The key adjustsitself to bobbins of various lengths and tlie spindle can be used ondiiferenttypes of bobbins.

. From the foregoing description, taken in connection with theaccompanying dr. wing, the advantages of the construction and of themethod of operation will be readily apparent to those skilled in the artto which the invention appertains, and while I have described theprinciple of operation of the invention, together with the device whichI now consider to be the best embodiment thereof, I desire to have itunderstood that the device shown is merely illustrative, and that suchchanges may be made when desired as are within the scope of the claimsappended hereto.

Having thus described the invention, What I claim is 1 A bobbin spindlecomprising a head, a shank thereon, a key on the shank for holdtensionmeans for holding the key in engagement with the bobbin, said meansbeing covered by the bobbin when the latter is in position on thespindle.

2. A bobbin spindle including a shank having a straightlongitudinallyextending groove in its surface, a spring extendinglengthwise in the groove, a member connected with the spring and movablelongitudinally on the spindle, and a key on the member for engaging abobbin on the spindle to prevent movement thereof.

3. A. bobbin spindle including a shank, a longitudinally-extendingguideway at the tip thereof, a key slidably mounted in the guidevay forreleasably holding a bobbin (11 the spindle, and a helical extensionspring connected with the key for maintaining the latter in engagementwith the bobbin.

l. A bobbin spindle comprising a shank having a longitudinal groove inits surface, a sleeve on the spindle provided with a slot alining withthe groove, the outer surface of the sleeve being flush with the surfaceof the shank, a member engaged in the groove and held therein by thesleeve for sliding movement, a spring connected with the member, and akey attached to the member and projecting out of the said slot to engagethe outer end of a bobbin'on the spindle.

In testimony whereof I afiix my signature in presence of two witnesses.

CHARLES JENKINS.

Vitnesses F RANK E. KEAR, IRvIxG ORR.

